{"id":534793,"date":"2026-11-11T22:37:46","date_gmt":"2026-11-11T22:37:46","guid":{"rendered":"http:\/\/6af4dc13f38e6cdd52133567"},"modified":"2026-11-11T22:37:46","modified_gmt":"2026-11-11T22:37:46","slug":"los-mayas-contaminaron-con-mercurio-lagos-de-yucatan-hace-mas-de-1000-anos","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=534793","title":{"rendered":"Los mayas contaminaron con mercurio lagos de Yucat\u00e1n hace m\u00e1s de 1,000 a\u00f1os"},"content":{"rendered":"<p>La contaminaci\u00f3n ambiental asociada con las actividades humanas no es un fen\u00f3meno exclusivo de la era industrial. Una reciente investigaci\u00f3n descubri\u00f3 que, durante el Periodo Cl\u00e1sico (250-920 d. C.), los mayas contaminaron con mercurio el Lago Cob\u00e1 y el cenote Xcach, ubicados en la pen\u00ednsula de Yucat\u00e1n, M\u00e9xico.<\/p>\n<p>Seg\u00fan los especialistas, <strong>esta situaci\u00f3n represent\u00f3 un problema ambiental y de salud para las poblaciones antiguas asentadas en esas regiones<\/strong>, debido al deterioro de los ecosistemas acu\u00e1ticos y a la exposici\u00f3n cr\u00f3nica al metal t\u00f3xico mediante el consumo de agua y alimentos provenientes de estos cuerpos lacustres.<\/p>\n<hr>\n<div class=\"ContentCardEmbedWrapper-hkvhYu kMYDit content-card-embed content-card-embed--stacked\" data-testid=\"ContentCardEmbedWrapper\" readability=\"21.901639344262\">\n<div class=\"ContentCardEmbedImage-bqahne fjmzkP content-card-embed__image\" data-testid=\"ContentCardEmbedImage\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj responsive-image\"><img decoding=\"async\" alt=\"maya 453513330\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/68965236ba4a3b8db134107d\/master\/w_120,c_limit\/maya%20453513330.jpg 120w, https:\/\/media.es.wired.com\/photos\/68965236ba4a3b8db134107d\/master\/w_240,c_limit\/maya%20453513330.jpg 240w, https:\/\/media.es.wired.com\/photos\/68965236ba4a3b8db134107d\/master\/w_320,c_limit\/maya%20453513330.jpg 320w, https:\/\/media.es.wired.com\/photos\/68965236ba4a3b8db134107d\/master\/w_640,c_limit\/maya%20453513330.jpg 640w, https:\/\/media.es.wired.com\/photos\/68965236ba4a3b8db134107d\/master\/w_768,c_limit\/maya%20453513330.jpg 768w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/68965236ba4a3b8db134107d\/master\/w_775%2Cc_limit\/maya%2520453513330.jpg\"><\/picture><\/span><\/div>\n<div class=\"ContentCardEmbedInfo-buyHWH gWLOee\" readability=\"23.270491803279\">\n<div class=\"BaseText-fEwdHD ContentCardEmbedHed-kDKGDs iUENtL dlHXUJ content-card-embed__hed\" data-testid=\"ContentCardEmbedHed\"><a class=\"BaseLink-haTOKm ContentCardEmbedHedLink-iBZsco ILkR hhUFQU content-card-embed__hed-link link\" href=\"https:\/\/es.wired.com\/articulos\/civilizacion-maya-fue-mucho-mas-poblada-y-organizada-de-lo-que-se-creia\" data-testid=\"ContentCardEmbedHedLink\">La civilizaci\u00f3n maya fue mucho m\u00e1s poblada y organizada de lo que se cre\u00eda<\/a><\/div>\n<p>Los hallazgos confirman que las Tierras Bajas Mayas del Per\u00edodo Cl\u00e1sico no solo estaban densamente habitadas, sino que tambi\u00e9n contaban con una estructura compleja.<\/p>\n<\/div>\n<\/div>\n<hr>\n<p>Diversas investigaciones previas documentan que esta <a href=\"https:\/\/es.wired.com\/articulos\/como-los-mayas-lograron-predecir-eclipses\">antigua civilizaci\u00f3n mesoamericana<\/a> utilizaba el mercurio elemental y el cinabrio como pigmento rojo para decorar cer\u00e1mica, edificios y objetos funerarios.<\/p>\n<p>La exposici\u00f3n constante a este metal puede afectar el sistema nervioso humano y da\u00f1ar los ecosistemas. En los ambientes acu\u00e1ticos, algunas bacterias pueden transformarlo en metilmercurio, una forma especialmente peligrosa que se acumula en los organismos y se transmite a trav\u00e9s de la cadena alimentaria.<\/p>\n<p>Aunque ya exist\u00edan registros de restos de mercurio en diferentes asentamientos mayas, hasta ahora no estaba claro qu\u00e9 tan extendida hab\u00eda sido la contaminaci\u00f3n ni cu\u00e1les pod\u00edan ser sus consecuencias para los ecosistemas y las poblaciones humanas.<\/p>\n<p>En 2023, un equipo de cient\u00edficos dirigido por Matthew Neal Waters, investigador de la Universidad de Auburn, (en Alabam, Estados Unidos) extrajo columnas de sedimentos de cuatro cuerpos lacustres de la pen\u00ednsula de Yucat\u00e1n. Tras analizar las muestras con t\u00e9cnicas de paleolimnolog\u00eda y dataci\u00f3n por radiocarbono, descubrieron que las concentraciones de mercurio se mantuvieron durante siglos en el lago Cob\u00e1 y el cenote Xcach. En este \u00faltimo sitio incluso <strong>alcanzaron niveles hasta seis veces superiores al umbral de efecto severo de las referencias toxicol\u00f3gicas actuales.<\/strong><\/p>\n<p>Los resultados, <a href=\"https:\/\/www.science.org\/doi\/10.1126\/sciadv.aeh3280?referrer=https%3A%2F%2Fphys.org%2F\">publicados<\/a> este mes en la revista <em>Science Advances<\/em>, mostraron que la acumulaci\u00f3n del metal pesado comenz\u00f3 en ambos cuerpos de agua durante los primeros siglos de nuestra era, aunque con diferencias en su intensidad.<\/p>\n<p>En el lago de Cob\u00e1, las concentraciones aumentaron alrededor del a\u00f1o 40 d. C. y alcanzaron un m\u00e1ximo de 2.3 microgramos por gramo entre 250 y 300 d. C. En el cenote Xcach, en cambio, se identificaron tres episodios de contaminaci\u00f3n. El m\u00e1s importante ocurri\u00f3 entre aproximadamente 535 y 820 d. C., cuando el promedio fue de 8.4 microgramos por gramo y se registr\u00f3 un m\u00e1ximo de 18 microgramos por gramo alrededor del a\u00f1o 720. En este \u00faltimo sitio, seg\u00fan los hallazgos, las concentraciones superaron el umbral de efecto severo durante casi tres siglos.<\/p>\n<figure class=\"AssetEmbedWrapper-iJvQnD cOWUYC asset-embed\">\n<div class=\"AssetEmbedAssetContainer-fnduJP iaVSwI asset-embed__asset-container\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset responsive-image\"><img decoding=\"async\" alt=\"mayas mercurio\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/6af4e9935bd5093de8e4a2ec\/master\/w_120,c_limit\/lagocoba.jpg 120w, https:\/\/media.es.wired.com\/photos\/6af4e9935bd5093de8e4a2ec\/master\/w_240,c_limit\/lagocoba.jpg 240w, https:\/\/media.es.wired.com\/photos\/6af4e9935bd5093de8e4a2ec\/master\/w_320,c_limit\/lagocoba.jpg 320w, https:\/\/media.es.wired.com\/photos\/6af4e9935bd5093de8e4a2ec\/master\/w_640,c_limit\/lagocoba.jpg 640w, https:\/\/media.es.wired.com\/photos\/6af4e9935bd5093de8e4a2ec\/master\/w_768,c_limit\/lagocoba.jpg 768w, https:\/\/media.es.wired.com\/photos\/6af4e9935bd5093de8e4a2ec\/master\/w_960,c_limit\/lagocoba.jpg 960w, https:\/\/media.es.wired.com\/photos\/6af4e9935bd5093de8e4a2ec\/master\/w_1280,c_limit\/lagocoba.jpg 1280w, https:\/\/media.es.wired.com\/photos\/6af4e9935bd5093de8e4a2ec\/master\/w_1600,c_limit\/lagocoba.jpg 1600w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/6af4e9935bd5093de8e4a2ec\/master\/w_1600%2Cc_limit\/lagocoba.jpg\"><\/picture><\/span><\/div>\n<div class=\"CaptionWrapper-bpPcvW kzGGxb caption AssetEmbedCaption-eZIMNW gMgneI asset-embed__caption\" data-testid=\"caption-wrapper\"><span class=\"BaseText-fEwdHD CaptionText-cQpRdU gZqZYz hbiMYj caption__text\"><\/p>\n<p>Lago de Cob\u00e1.<\/p>\n<p><\/span><span class=\"BaseText-fEwdHD CaptionCredit-cUgOGk fSrqtv hRFzlA caption__credit\">DC_Colombia\/Getty Images<\/span><\/div>\n<\/figure>\n<h2>Las actividades en el medio ambiente impactan desde la \u00e9poca de los mayas<\/h2>\n<p>Los investigadores descartaron que la contaminaci\u00f3n proviniera de una fuente atmosf\u00e9rica, ya que en los sedimentos del Cenote Polol y la laguna de Chichankanab no encontraron niveles elevados de mercurio. Esta diferencia respald\u00f3 la hip\u00f3tesis de que <strong>el problema se origin\u00f3 en actividades humanas.<\/strong><\/p>\n<p>Los cient\u00edficos plantean que los mayas pudieron transportar el mercurio en sus distintas formas desde otras regiones y que, posteriormente, el metal lleg\u00f3 a los cuerpos lacustres mediante la erosi\u00f3n del suelo.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>La contaminaci\u00f3n ambiental asociada con las actividades&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":534794,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[46],"tags":[],"class_list":["post-534793","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - 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